Young people's perspectives of thyroid cancer screening and its harms after the nuclear accident in Fukushima Prefecture: a questionnaire survey indicating opt-out screening strategy of the thyroid examination as an ethical issue.

BACKGROUND: Overdiagnosis of thyroid cancer has become a major global medical issue. Ultrasound-based thyroid cancer screening has promoted overdiagnosis, and recently international recommendations state that it should not be conducted, even after a nuclear accident. The Fukushima thyroid cancer screening program was initiated in 2011 as a health policy after the nuclear accident. The risk of radiation-induced thyroid cancer was unlikely given the low radiation levels, but the thyroid cancer screening program has continued at 2-year intervals with a relatively high participation rate and is now in its fifth round. It is therefore crucial to clarify whether those targeted for screening understand the disadvantages of screening, and to identify factors that influenced their decision to participate. METHODS: We conducted an anonymous mail-based questionnaire among young people from Fukushima Prefecture (subjects) and a neighboring prefecture that was not targeted for screening (non-subjects). We asked them about the significance of the thyroid cancer screening in Fukushima Prefecture, their reasons for accepting or refusing screening, their perception of the harms of screening, and their opinions on thyroid examination at school. We compared the results of the questionnaire between subjects and non-subjects and between examinees (who were screened) and non-examinees (who declined screening). RESULTS: Only 16.5% of respondents were aware of the harms associated with thyroid cancer screening, with most perceiving that the benefits outweighed the harms. Comparison of subjects' and non-subjects' responses showed there were no significant differences between the two groups. Among subjects, there were also no differences in responses between examinees and non-examinees. The most common reason for participation in screening was that the screening was conducted in schools and perceived as obligatory. CONCLUSIONS: These results highlighted a serious ethical issue in that school-based screening leads to making young people think that it is mandatory screening in an opt-out and default setting manner, with a lack of knowledge about the disadvantages of screening. Based on the autonomy of the subjects and the ethical principle of the post-disaster, surveys after a nuclear disaster should be conducted in an opt-in style without an opt-out style such as school-based screening.

Skin Cancer-Sun Knowledge and Sun Protection Behaviors of Liver Transplant Recipients in Turkey.

The aim of this study was to compare liver transplant recipients (LTRs) with the general population regarding their knowledge of skin cancer, sun health, sun protection behaviors, and affecting factors. This cross-sectional study was conducted in Turkey between March 2016 and September 2016 with 104 LTRs and 100 participants from the general population group (GPG). The mean age of the LTRs was 53.2 ± 11.8 and that of the GPG was 42.7 ± 14.5. The LTRs' skin cancer and sun knowledge were significantly lower than in the GPG, but there was no difference between the two groups in terms of their sun protection behavior scores. The most commonly used sun protection behaviors of LTRs were not being outside and not sunbathing between 10 a.m. and 4 p.m., wearing clothing that covers the skin, and avoiding the solarium. Behaviors commonly practiced by the GPG were wearing sunglasses, wearing sunscreen with a sun protection factor of 15 or higher before going outside, wearing sunscreen at the beach, while swimming or doing physical activity outside, and reapplying it every 2 h. Results of our study will contribute to the development of education and training programs for LTRs on skin cancer. The results also demonstrated the importance of practicing adequate sun protection behaviors which will certainly impact their future health.

An integrated model of skin cancer risk in sexual minority males.

Sexual minority males are an at-risk group for developing skin cancer. Elevated rates of skin cancer among this population are thought to be driven by excess indoor tanning; however, motivations to indoor tan among this population are unknown. Theoretically, appearance-based and affect regulation motives may be proximal predictors of increased indoor tanning in this population. The current study tests an integrated biopsychosocial model of indoor tanning behaviors and future intentions among a sample of sexual minority males. Participants were 231 sexual minority males, between the age of 14 and 35 years, residing in San Diego County, California, who completed a battery of self-report questionnaires online. Constructs assessed included skin tone, perceived susceptibility to skin cancer, sociocultural pressures to tan, appearance-based motives to tan, affect regulation in regard to indoor tanning, indoor tanning behaviors over the previous 3 months, and future intentions to indoor tan. The three proposed proximal predictors of indoor tanning all displayed significant pathways; however, results varied depending upon the specific outcome measure modeled. Affect regulation was significantly associated with increased odds of indoor tanning, and future intentions to indoor tan. Increased appearance reasons to tan were significantly associated with future intentions to indoor tan, while increased appearance reasons not to tan were significantly associated with fewer number of indoor tanning sessions. Results underscore the unique pathways of affect regulation and appearance-based motives in indoor tanning behaviors. Skin cancer prevention programs focusing on sexual minority males may wish to address affect and appearance concerns.

[The Chernobyl Disaster Consequences from the -Distance of 30 Years].

There are 2 most important questions regarding studies of the Chernobyl disaster: to what degree the opportunities to decrease injuries of the people affected by the disaster were realized and how the study of the con- sequences of the disaster impacted elucidation of low level radiation damage to human health. It can be as- sumed that not all scientific elaborations were realized to a proper degree (the use of iodine prophylaxis, radioprotectors). It was associated with impoper fulfillment of instructions by executive organs of radiation safety and medical emergency aid. However, the stationary medical treatment of patients with acute radiation disease was well organized. Insufficient consideration was given to non- radiological factors having an effect or,the psycho-emotional state of the people. Harmful effects of small doses on human health were not be found. The adverse delayed consequences (thyroid cancer, leucosis, and solid cancers) were found in the case of exceeding dose limit of 250 mGy. The upper border of low harmless.radiation doses could not be detected in those studies because of poor radiation dosimetry of liquidators, inadequate models of risk evaluation and ignoring influence of non-radiological factors on human health.

[What nosographic framework for excessive tanning?]. / Quel cadre nosographique pour le bronzage excessif ?

BACKGROUND: Socially valorised tanning, like other forms of behaviour, can take on an addictive aspect. Excessive tanning, defined by the presence of impulsivity and repetition of tanning that leads to personal distress, is a psychiatric disorder that has only recently been recognized. This finding is based on the observations of many dermatologists who report an addictive relationship in their patients with tanning cabins despite announcement of the diagnosis of malignant melanoma. OBJECTIVE: This article attempts to synthesize the existing literature on excessive tanning and addiction to investigate possible associations. This review focuses on the prevalence, clinical features, aetiology, and treatment of this disorder. METHODS: The literature review was conducted from 1983 to 2012, using PubMed, Google Scholar, EMBASE, and PsycInfo, using the following keywords alone or combined: Tanning, Addiction, Sunbeds, Skin cancer prevention, and Treatment. We investigated different models to determine how excessive tanning met these criteria. RESULTS: Excessive Tanning was described in the 2000s by an American dermatologist, Carolyn Heckman. Wartham et al. were the first to have proposed a theoretical framework for addiction to sunbathing, as well as two scales (m CAGE and m DSM IV) for the diagnosis and to assess the degree of addiction. These diagnostic criteria describe the craving like-symptoms, the feeling of losing control, or the continuation of the behavior despite knowledge of negative consequences. Excessive Tanning is not present in the classifications of the DSM or ICD, but may be related to Addiction, Obsessive-Compulsive Disorder, Impulse control disorders, Anorexia, or Body Dysmorphic Disorder. CONCLUSION: Excessive tanning can be included in the spectrum of behavioural addictions due its clinical characteristics in common with classics addictive disorders. They are a variety of other models, which may offer an explanation for or insight into tanning behaviour. Further studies must be controlled, notably on clinical psychopathology, neurobiology and management to improve our understanding of excessive tanning.

Sun behaviour after cutaneous malignant melanoma: a study based on ultraviolet radiation measurements and sun diary data.

BACKGROUND: It has been reported that patients with cutaneous malignant melanoma (CMM) can lower their risk of a second primary melanoma by limiting recreational sun exposure. Previous studies based on questionnaires and objective surrogate measurements indicate that before their diagnosis, patients with CMM are exposed to higher ultraviolet radiation (UVR) doses than controls, followed by a reduction after diagnosis. OBJECTIVES: In a prospective, observational case-control study, we aimed to assess sun exposure after diagnosis of CMM by objective measurements to substantiate advice about sun behaviour. METHODS: The study population consisted of 24 patients recently diagnosed with CMM during the 7 months preceding the start of the study; 51 controls who matched these recently diagnosed patients in age, sex, occupation and constitutive skin type; and 29 patients diagnosed with CMM between 12 months and 6 years before the start of the study. During a summer season participants filled in sun exposure diaries daily and wore personal electronic UVR dosimeters in a wristwatch that continuously measured time-stamped UVR doses in standard erythema dose. RESULTS: The UVR dose of recently diagnosed patients on days with body exposure was one-third lower, and the number of days using sunscreen was double that of matched controls. However, in patients diagnosed more than 12 months earlier, the UVR dose on days with body exposure was one-third higher and the number of days using sunscreen was half that of recently diagnosed patients. CONCLUSIONS: Patients with CMM limited their UVR dose on days with body exposure, and by using sunscreen further reduced UVR reaching the skin, although only immediately after diagnosis.

Health literacy, sunscreen and sunbed use: an uneasy association.

BACKGROUND: Skin cancer can largely be prevented by avoiding unsafe ultraviolet radiation (UVR) exposure. The evidence on potential drivers of sunscreen and sunbed use is extensive, yet in some cases, such as education, remains rather unclear. Health literacy is receiving increasing attention, but its effect on tanning decisions has not yet been explored. OBJECTIVES: To explore the association between health literacy and tanning behaviour, in terms of sunscreen and sunbed use. METHODS: Self-reported data were collected through a common questionnaire in eight European countries under a common protocol. A three-item measure was used to assess health literacy; one item was collected to measure current sunscreen use and one item to measure current sunbed use. Descriptive statistics and analysis of variance tests were applied to explore the profile of sunbed and sunscreen users and health literacy among a number of variables. Univariate and multivariate logistic regressions were used to assess the relation between health literacy and sunscreen and sunbed use. RESULTS: Univariate results suggested that health literacy has opposite effects on sunscreen use vs. sunbed use. Increased health literacy was associated with the skin cancer protective practice of using sunscreen, but also with more sunbed use. In the multivariate models, health literacy had a significant effect only on sunscreen use. CONCLUSIONS: The findings suggest that health literacy can be an interesting approach for influencing sunscreen use. In the case of sunbeds, based on the findings and contrary to what was expected, it can be argued that interventions targeting health literacy seem less likely to reduce sunbed use. More research is needed to elucidate the effect of health literacy on sunscreen and sunbed use in order to improve UVR prevention strategies.

Sun behaviour patterns and perception of illness among melanoma patients.

BACKGROUND: Melanoma is one of the most aggressive skin tumours for which the major risk factor is ultraviolet radiation. Sun protection is extremely important, especially for melanoma patients who, once diagnosed with melanoma, have 500 times greater chance of developing another melanoma than the general population. OBJECTIVE: In this study, we examined the perception of melanoma and attitudes towards sun protection among melanoma patients and compared their results with the patients suffering from other dermatological disorders. METHODS: In total, 240 participants were included in the study: 120 patients suffering from melanoma and 120 participants in the control group. The Sun Behaviour Patterns Questionnaire and the Brief Illness Perceptions Questionnaire were used in this study to assess sun behaviours and perception of melanoma. RESULTS: Melanoma patients have negative attitude towards sunbathing: 57% avoid sunbathing and 27% spend time in the sun only during swimming, otherwise seeking shade, whereas participants in the control group have more positive attitude towards sunbathing. Results indicate very short time of using sunscreen protection during the year and very small number of people using adequate SPF value, in both melanoma and control group. CONCLUSION: Participants in control group perceive melanoma as a more serious illness than patients who think that melanoma has mild symptoms, is easy to cure and control, has moderate consequences and lasts relatively long. Both melanoma patients and participants in the control group show relatively good sun behaviour patterns and slightly negative attitudes towards sun protection.

A new perspective on severe nuclear accidents.

The reactions of the public in Korea to the nuclear accident at the Fukushima Daiichi plants in Japan, particularly over-reactions, are reviewed, with the conclusion that significant radioactive contamination of a small country could lead to a severe national crisis. The most important factor is the socio-economic damage caused by stigma, which in turn is caused by a misunderstanding of the radiation risk. Given that nuclear power is an important choice in the face of the threat of climate change, the public's perceptions need to be changed at any cost, not only in those countries operating nuclear power plants but globally as well.

Fears, feelings, and facts: interactively communicating benefits and risks of medical radiation with patients.

OBJECTIVE: As public awareness of medical radiation exposure increases, there has been heightened awareness among patients and physicians of the importance of holistic benefit-and-risk discussions in shared medical decision making. CONCLUSION: We examine the rationale for informed consent and risk communication, draw on the literature on the psychology of radiation risk communication to increase understanding, examine methods commonly used to communicate radiation risk, and suggest strategies for improving communication about medical radiation benefits and risk.

Exercise Improves Cancer-free Survival and Health Span in a Model of Radiation-induced Cancer.

INTRODUCTION: Radiation therapy increases the risk of secondary malignancy and morbidity in cancer survivors. The role of obesity and exercise training in modulating this risk is not well understood. As such, we used a preclinical model of radiation-induced malignancy to investigate whether diet-induced obesity and/or endurance exercise training altered lifelong survival, cancer incidence, and morbidity. METHODS: Male CBA mice were randomly divided into control diet/sedentary group (CTRL/SED), high-fat diet (45% fat)/sedentary group (HFD/SED), control diet/exercise group (2-3 d·wk-1; CTRL/EX), or high-fat diet/exercise group (HFD/EX) groups then exposed to whole-body radiation (3 Gy). End point monitoring and pathology determined mortality and cancer incidence, respectively. Health span index, a measure of morbidity, was determined by a composite measure of 10 anthropometric, metabolic, performance, and behavioral measures. RESULTS: Overall survival was higher in HFD/SED compared with CTRL/SED (P < 0.05). The risk of cancer-related mortality by 18 months postradiation was 1.99 and 1.63 in HFD/SED compared with CTRL/EX (RR = 1.99, 95% confidence interval = 1.20-3.31, P = 0.0081) and CTRL/SED (RR = 1.63, 95% confidence interval = 1.06-2.49, P = 0.0250), respectively. The number of mice at end point with cancer was higher in HFD/SED compared with CTRL/EX and CTRL/SED (P < 0.05). Health span index was highest in CTRL/EX (score = +2.5), followed by HFD/EX (score = +1), and HFD/SED (score = -1) relative to CTRL/SED. CONCLUSION: This work provides the basis for future preclinical studies investigating the dose-response relationship between exercise training and late effects of radiation therapy as well as the mechanisms responsible for these effects.

Cancer risk from diagnostic radiology in a deliberate self-harm patient.

OBJECTIVE: Patients who engage in recurrent deliberate self-harm (DSH) behaviours have increased morbidity and mortality and use emergency services more than others. Unrecognized iatrogenic injury may play a role. Specifically, we call attention to the potential danger of cumulative radiation exposure. METHOD: Case presentation and discussion. RESULTS: A 29-year-old woman with multiple episodes of deliberate foreign body ingestion received over 400 diagnostic radiology examinations during a 12 year period. The patient's calculated total radiation dose reached an average of 20.5 mSv per year, a dose comparable to atomic bomb survivors and nuclear industry workers, populations in which there is a significant excess cancer risk. CONCLUSION: Patients with recurrent self-injurious behaviours, frequent users of healthcare services who often undergo repeated medical assessment and treatment, are likely at higher risk for iatrogenic adverse events. Multiple diagnostic radiology examinations have recently come under scrutiny for causing increased lifetime risk of cancer. Healthcare providers, in particular psychiatrists and emergency department physicians, should consider the cumulative risks of radiological procedures when assessing and treating patients with DSH.

Low-dose environmental radiation, DNA damage, and cancer: the possible contribution of psychological factors.

Radiation causes DNA damage, increases risk of cancer, and is associated with psychological stress responses. This article proposes an evidence-based integrative model in which psychological factors could interact with radiation by either augmenting or moderating the adverse effects of radiation on DNA integrity and eventual tumorigenesis. Based on a review of the literature, we demonstrate the following: (1) the effects of low-dose radiation exposures on DNA integrity and on tumorigenesis; (2) the effects of low-dose radiation exposure on psychological distress; (3) the relationship between psychological factors and DNA damage; and (4) the possibility that psychological stress augments and that psychological resource variables moderate radiation-induced DNA damage and risk of cancer. The additional contribution of psychological processes to radiation-DNA damage-cancer relationships needs further study, and if verified, has clinical implications.

Reconceptualizing decisional balance in an adolescent sun protection intervention: mediating effects and theoretical interpretations.

OBJECTIVE: The Transtheoretical model (TTM) integrates principles of operant learning, such as stimulus control and reinforcement, and psychological factors, such as decisional balance. Understanding interrelationships between decisions, behavior, and consequences from multiple-theoretical perspectives can advance theory and inform development of more effective interventions. METHOD: This analysis examined the mediating effects of a special case of the decisional balance construct in which the pros of competing behaviors (i.e., sun protection vs. exposure) were measured rather than the pros and cons of the same behavior. Participants included 819 adolescents (10 to 16 years old, 53.5% girls, 58.4% White) randomized to a 24-month expert system intervention (SunSmart) or a physical activity and nutrition comparison group. MAIN OUTCOME MEASURES: Self-report measures included sun protection behaviors, pros for protection, and pros for exposure. Mediation analysis using latent growth curve models found both the treatment-to-mediator and mediator-to-behavior paths significant for decisional balance, producing an indirect effect of .323 (p < .01) and good model fit (CFI = .973, RMSEA = .055). RESULTS: Multiple strategies for conceptualizing and measuring decisional balance appear to be valid. Results are interpreted from the TTM and operant perspectives.

Appearance motives to tan and not tan: evidence for validity and reliability of a new scale.

BACKGROUND: Risk for skin cancer is increased by UV exposure and decreased by sun protection. Appearance reasons to tan and not tan have consistently been shown to be related to intentions and behaviors to UV exposure and protection. PURPOSE: This study was designed to determine the factor structure of appearance motives to tan and not tan, evaluate the extent to which this factor structure is gender invariant, test for mean differences in the identified factors, and evaluate internal consistency, temporal stability, and criterion-related validity. METHOD: Five-hundred eighty-nine females and 335 male college students were used to test confirmatory factor analysis models within and across gender groups, estimate latent mean differences, and use the correlation coefficient and Cronbach's alpha to further evaluate the reliability and validity of the identified factors. RESULTS: A measurement invariant (i.e., factor-loading invariant) model was identified with three higher-order factors: sociocultural influences to tan (lower order factors: media, friends, family, significant others), appearance reasons to tan (general, acne, body shape), and appearance reasons not to tan (skin aging, immediate skin damage). Females had significantly higher means than males on all higher-order factors. All subscales had evidence of internal consistency, temporal stability, and criterion-related validity. CONCLUSIONS: This study offers a framework and measurement instrument that has evidence of validity and reliability for evaluating appearance-based motives to tan and not tan.

Smoking cessation counseling as a teachable moment for skin cancer prevention: pilot studies.

OBJECTIVE: To conduct pilot research examining smoking cessation counseling as a teachable moment for skin cancer prevention. METHODS: Study I surveyed 199 beachgoers regarding skin cancer protection. Study II compared a standard smoking cessation treatment against one that incorporated skin cancer education (N=35). RESULTS: In Study I, smokers were less likely than nonsmokers to wear sunscreen or perform skin self-examinations. In Study II, participants were satisfied with the integrated program; smoking cessation treatment efficacy was not compromised; and skin cancer knowledge and self-efficacy increased. CONCLUSIONS: Further study of smoking cessation as a teachable moment for other health behavior change is warranted.

Gilbert W. Beebe Symposium on 30 Years after the Chernobyl Accident: Current and Future Studies on Radiation Health Effects.

This commentary summarizes the presentations and discussions from the 2016 Gilbert W. Beebe symposium "30 years after the Chernobyl accident: Current and future studies on radiation health effects." The symposium was hosted by the National Academies of Sciences, Engineering, and Medicine (the National Academies). The symposium focused on the health consequences of the Chernobyl accident, looking retrospectively at what has been learned and prospectively at potential future discoveries using emerging 21st Century research methodologies.